Answer Happy

A 50.0 g ball of copper has a net charge of 2.00 µC. What fraction of the copper's electrons has been removed? (Each copper atom has 29 protons, and copper has an atomic mass of 63.5.). This question is based on example 7 from Student Solution Manual page 134. 8.09 x 10-13 9.09 x 10-13 O 6.09 x 10-13 O 7.09 x 10-13 Question 4 Two point charges are brought closer together, increasing the force between them by a factor of 25. By what factor was their separation decreased? This question is based on example 13 from Student Solution Manual page 135. O by a factor of 75 by a factor or 50 1 pts O by a factor of 25 O by a factor of 5